Front end 'THUNK"

[dardal@xxxxxxxxxxxxxxx]

Have you checked the ball joints?  You know how to check the condition of the 
ball joints, rihgt?  You just raise the car so the tire is off the ground and 
check for motion as you try to turn the wheel and and out (or up and down, 
which ever term you prefer).  If its not moving, you are fine.  If it is, it 
could be the wheel bearings, so ask somebody else to shake the wheel while you 
are looking to see what moves in respect to what.  It could also be the strut 
rod bushing, but I am not sure if that can cause the shimmy wheel.  Are you 
sure the two symptoms are related?  Shimmy wheel could be due to tire balance 
issues or bad alignment.

I am having a similar problem on my 68 Sedan by the way.  I think that part of 
my problem is isolator bushings, but the 64 does not have those, as its not 
unibody.  Another possibility for my problem is sway bar bushings.

D^2, 2x68

Quoting Kerry Pinkerton <pinkertonk@xxxxxxxxx>:

> My 64 has developed a thunk.  It is in the drivers side front end.  I
> hear it and can feel it in the steering wheel.  Most noticable when
> starting forward after a reverse or sometimes just starting forward
> after coming to a stop.  Not a loud thunk but a thunk and a small shimmy
> in the wheel.  Obviously something loose or worn.  Don't see anything
> obviously bad.  I replaced the upper control arm bushings on this car as
> documented on the site a few months back and inspected everything pretty
> well.
> 
> Anyone familiar with this symptom and possible cure before I have to get
> into it the hard way?
> 
> KerryP
> Patch panels fabricated
> Pinkertonk@xxxxxxxxx
> dte.net/57imperial
> Imperials -- 50 Limo, 57 roadster, 61's, 64, 68 Convert, 73, a 66 300
> and a bunch of lesser marques
>